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  1. #1
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    Questions on new MM2.

    So I finally took the jump to brushless and I am super pumped. I bought all the necessary mounting hardware to mount my new a Caste Creations mamba monster 2. I'm running trencher x's all around and nimh 4500's. The install went really well, but I have some questions.

    The guys at my local hobby shop recommended I run a 14 tooth pinion because i am using the nimh batts and I used a 68 tooth spur. So, the 14 T pinion wouldn't come in contact with the spur because the transmission would be on the motor can. So I just used the 18 tooth pinion that came stock with the MM2. I was wondering if it's fine if I run it like this? Also i don't know if it is the pinion/spur or transmission or the driveline but it sounds really "crackely" when I took it for a drive. I was wondering if this is usually what happens or if it's smoother.

    Also it Boggs a bit when I accelerate every once in a while.

    When I programmed the esc and motor I don't think I did it right. When I accelerate I think it isn't reaching full power. I re-programmed it like 10 times, when I drive it now the motor won't reverse. The esc will also beep once every once in a while.

    Also if anyone has any tips for it let me know! I will eventually be switching to lipos but I just don't have the $$ to buy it. I love the system though it's really cool and looks bad *****!!

  2. #2
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    It is bogging, and not reaching full power, because nimhs don't have the amps necessary to run properly a brushless system, it really needs some lipos to release all the power. The crackling sound could be anything from a stripped diff, driveshaft or a bad mesh.

  3. #3
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    Ok that makes sense. What lipos would you guys recommend?
    Last edited by vwbug; 04-27-2014 at 02:57 PM.

  4. #4
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    Quote Originally Posted by vwbug View Post
    Ok that makes sense. What lipos would you guys recommend?
    SPC Lipos. Tom dose not have many in stock.They are well worth waiting for IMO. Promatch are some good lipos also

    http://www.spcracingbatteries.com/
    http://www.promatchracing.com/index.php

  5. #5
    RC Turnbuckle Jr. 87 GN's Avatar
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    so do you have reverse yet??

    Start with a good set of 2s, SMC, SPC, Traxxas top three.. higher the mAh the longer the run time, higher the C rating more punch. read in your MM2 manual the minimum amps required to power the system, more amps the better all my batts are well over 200 amps.

    2S 9000 x 28C = 252,000 divide 1000 = 252 amps
    2S 9400 x 60C = 564,000 divide 1000 = 564 amps

    ( mah x c rating / 1000 = amps)
    http://www.smc-racing.net/index.php?...tegory&path=67

    you did?
    Speed Control Programming Instructions

    The Castle Creations Mamba Max speed control should not need
    reprogramming with normal use. However, if you install a different
    radio system in your model, or change the transmitter’s throttle-neutral
    setting from 50/50 to 70/30, you will need to reprogram the speed
    control. Follow these instructions to reprogram the speed control:
    1. Install the batteries of your choice in the battery compartments and
    plug the batteries into the speed control.
    2. Switch on your transmitter.
    3. Hold full throttle while you switch on the Mamba Monster controller.
    After a few seconds, you will hear multiple tones and the
    RED LED will light.
    4. Hold full brake. After a few seconds, you will hear multiple tones
    and the YELLOW LED will light.
    5. Release the trigger to the neutral position. After a few seconds,
    you will hear multiple tones and ALL THE LEDs will light.

    another way to set you gear mesh by sound



    if you don't have your manual
    MM2 QUICK START GUIDE & Recalibrate ESC

    Post #300
    http://traxxas.com/forums/showthread...=1#post5400474

    piled almost everything else, might as well throw in this too.

    AOD's Links EMaxx

    Emaxx 101:
    EMAXX FAQ

    Lipo, LVC, Brushless & Battery charger/charging guides & purchasing links:
    TUTORIALS

    Refer to this to setup the Mamba Monster ( MMM ) esc for maximum performance:
    CASTLE LINK GUIDE


    Refer to this to find parts, upgrades, batts & chargers etc:
    USEFUL LINKS


    And direct from CastleCreations ( the esc manufacturers ):
    MMM FAQ

    Driver's ED Manual

    LED warning light meanings

    EMAXX 3906 UPGRADE GUIDE & LOW BUDGET BRUSHLESS OPTIONS
    Last edited by 87 GN; 04-27-2014 at 04:08 PM.
    Would you go flip my truck back over??

  6. #6
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    thanks snowfighter I am going to purchase a set of spc's soon would 5000's be powerful enough or should I go with 6500's?? Wow thanks 87gn! I will be re-programming it tomorrow! I have another question, does it matter what channel the fan Is plugged into?

  7. #7
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    The higher the mah means longer running time, make sure to get ones that fit, the batt compartments are tight, the fan can be plugged on any empty slot.
    Last edited by NFS; 04-27-2014 at 09:55 PM.

  8. #8
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    ok Is the fan suppose to be always on?

  9. #9
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    Yes fan is running constantly.

    Sent from my neXus⁴ using tapatalk 2
    <P4de VXL|Castle 3800kv|MM2|MIP|STRC|Proline|SPC>

  10. #10
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    ok thanks!

  11. #11
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    Vwbug. I have the SPC 2s 6500 65c. I get about 40min. of run time and the fit nicely.
    Spc has a good warranty and great customer service.
    Last edited by snowfighter; 04-28-2014 at 04:58 PM.

  12. #12
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    sweet thanks!!

  13. #13
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    Vwbug. 40min. of run time with stock gearing.
    Run time also depends how heavy your finger is .

  14. #14
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    and if the truck isnt in half

    Alright I got another question. So, Colorado decided to snow. In may, 16 days before summer break. So i thought sweet ill get the emaxx (now brushless) and go take a run. I then stopped and remembered that the fan must be removed but I was like, how? I don't see any screws but I see some tabs on the sides but i tried them and it dosent work. so if anyone knows how to take the fan off i would love to hear it.


    Edited for bypassing the language filter.
    Last edited by cooleocool; 05-15-2014 at 09:06 AM.

  15. #15
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    The tabs pus in toward the fan, quite hard I might add. Then the fan should sort of pop off, for lack of a better term.
    KCCO

  16. #16
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    ok thanks ill do that

  17. #17
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    I think the crackling sound you hear is just the sound of the motor. If you turn the output shaft by hand, you will feel that these monster motors are notchy by nature. When running your truck, if you let it coast to a stop in nuetral with no throttle/brake input, the crackling sound will be more pronounced. So, it is quite normal. I've heard this question asked before regarding these types of motors, and have experienced it myself. Hope that helps!
    E-Maxx 3903-Twin KD 700 HO - Wooden LCG Pede

  18. #18
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    ok thanks i noticed that when i would roll the truck and found it hard to roll. I got another batt question if i have a nimh batt that's casing is melted can i just wrap it in electrical tape and go run it?

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